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  1. Hive
  2. HIVE-3647

map-side groupby wrongly due to HIVE-3432

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 0.10.0
    • Query Processor
    • None

    Description

      There seems to be a bug due to HIVE-3432.

      We are converting the group by to a map side group by after only looking at
      sorting columns. This can give wrong results if the data is sorted and
      bucketed by different columns.

      Add some tests for that scenario, verify and fix any issues.

      Attachments

        1. hive.3647.1.patch
          24 kB
          Namit Jain
        2. hive.3647.2.patch
          24 kB
          Namit Jain
        3. hive.3647.3.patch
          28 kB
          Namit Jain
        4. hive.3647.4.patch
          50 kB
          Namit Jain
        5. hive.3647.5.patch
          66 kB
          Namit Jain
        6. hive.3647.6.patch
          101 kB
          Namit Jain
        7. hive.3647.7.patch
          101 kB
          Namit Jain
        8. hive.3647.8.patch
          101 kB
          Namit Jain

        Issue Links

          is related to

          Improvement - An improvement or enhancement to an existing feature or task. HIVE-3432 perform a map-only group by if grouping key matches the sorting properties of the table

          • Major - Major loss of function.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. HIVE-3888 wrong mapside groupby if no partition is being selected

          • Major - Major loss of function.
          • Closed

          Activity

            People

              namit Namit Jain
              namit Namit Jain
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              Dates

                Created:
                Updated:
                Resolved: